baber/WOPTO huggingface dataset:
Patent DE-4114968-A1 (DE)
Title: Current supply for inverter-controlled load - selects precisely valve combination sequence with phase voltage control signal of positive or negative sign
Inventor: EULITZ THOMAS DIPL ING
IPC: H02M7/529
Filed: 1991-05-03
Abstract: The supply is intended for single-phase or independently controllable adjusting servo-systems. Starting with the detected phase voltage control signals (ust) the precise valve combination sequence is selected with positive or negative control signal sign. Thus alternately a zero, a positive or negative, and a again a zero voltage is provided as starting voltage for the scanning interval. The switching times (To1, o2, 1) of the servo-valves are determined for the next scanning interval from a comparison of changes of the real arrangement and a model for the basic oscillation magnitudes from the instantaneous value of the phase voltage control signal, the path time constant, the path amplifying, and the scanning time. USE/ADVANTAGE - Mains and machine rectifiers in three-phase traction, with reduced cost in hardware and software electronic for obtaining quality parameters.
Patent DE-4118090-A1 (DE)
Title: Two=part packet for different fluids - incorporates separate openings to two chambers
Inventor: WANG SHICHANG DIPL ING
IPC: B65D1/04
Filed: 1991-06-01
Abstract: The packet for liquid foodstuffs comprises two or more fixedly bound chambers (A,B) which are each closed separately and against the outside in the normal state after packaging. The packing has at least two separate openings (1,2) or other accesses to the different chambers. At least one partition directly separates the two chambers. The geometrical shape, wall thicknesses and arrangement of the partitions can be in any form. USE/ADVANTAGE - Especially useful for storing different drinks which can be enjoyed separately.
Patent DE-4122386-A1 (DE)
Title: Vacuum rotary hearth furnace - with combined entry and exit lock, used for rapid cooling
Inventor: HOFFMANN RUEDIGER
IPC: F27B9/04
Filed: 1991-07-06
Abstract: Continuous vacuum furnace for brazing, hardening and tempering of metal tools and components has a rotary hearth with more than 3 treatment stations for partial charges. The vacuum locus for charging and discharging material to be treated are combined in a single lock, which is also equipped for rapid cooling in pressurised gas at pressures up to 10 bar. ADVANTAGE - Allows use of rotary principle for vacuum treatment.
Patent DE-4123759-A1 (DE)
Title: Identification of non-visible faults on test CD disc surface - feeding optical signal output to detector circuit to identify changes in code to locate fault
Inventor: KUEHN HANS
IPC: G11B20/18
Filed: 1991-07-18
Abstract: A test signal disc (TSP) in the form of a compact disc used for checking playing equipment, is scanned by a laser head (LP) that connects with an error detecting device (FE). A start/stop circuit connects with a blending circuit (ABS). The location of the error can be fitted in a marking process in which code is generated as part of an internal process. An external marking system may be used that uses a photodetector. In both cases scratches not normally visible can be identified. ADVANTAGE - Identification of non visible scratches and faults on disc surface.
Patent DE-4124261-A1 (DE)
Title: Washing discontinuous surfaces esp. of motor vehicles - repositioning nozzle in these dimensions to maintain constant length of jet impinging on surface
Inventor: KRAUTTER JUERGEN DIPL ING
IPC: B08B3/02
Filed: 1991-07-22
Abstract: Cleansing liq. (12) is ejected from a nozzle (11) at one end of a beam (10) clamped to a slider (2) which is raised and lowered on an upright fixed post (1) by a motor (3). Beams of radiation (7, 8) are projected by rangefinders (5, 6) from the slider (2) to the surface (9) being washed. Their reflections are processed by a memory and control unit (14) commanding the two motors (3, 13) responsible for adjusting the slider level and retracting or extending the beam (10). ADVANTAGE - Nozzle is constrained to follow contour of surface at distance automatically held constant.
Patent DE-4124413-A1 (DE)
Title: Subminiature, semiconductor, power solid state laser - is optically energised by number of LED chips with radiation impinging on jacket of laser-active crystal
Inventor: HERZHOFF BERND
IPC: H01S3/0941
Filed: 1991-07-23
Abstract: The semiconductor solid laser has an active crystal (7) in the form of an optical resonator of a crystal doped especially for electromagnetic radiation for generating the laser effect. The optical excitation is carried out by a number of LEDs in the form of semicondcutor chips (6), whose radiation is directed onto the outer surface of the crystal. Pref., the radiation of the LED chips for HF crystal excitation lies in the UV range. The LED chips may be secured to the inner faces of polygonal LED supports (5a,b) fitted round the crystal, typically consisting of two half-shells. Cooling microchannels are provided in the LED supports or between the supports and an external housing (1). USE/ADVANTAGE - For YAG crystal lasers, with very compact design, very long service life, and easy handling.
Patent DE-4126058-A1 (DE)
Title: Decontamination of soil contaminated with volatile compound - by first heating soil and removing gasified compound by suction
Inventor: WOLFROM ALFRED DIPL ING
IPC: B09C1/08
Filed: 1991-08-06
Abstract: Material, esp. soil, which has been contaminated with a volatile organic compound is decontaminated by first homogenising and heating it and then placing it in a sealed container. The container is then connected to a vacuum pump which removes the organic compound which has been gasified by heating. The gas thus removed is then separated into its constituents. Air may be removed from the container together with the volatile compound. The pressure in the container is reduced to between 5 and 100 hPa, preferably 10 hPa below the pressure of the atmosphere. USE/ADVANTAGE - Decontamination of soil. Volatile organic compounds are removed by an inexpensive method.
Patent DE-4130271-A1 (DE)
Inventor: KRANJC JOSEF DIPL ING
IPC: A61B90/00
Filed: 1991-09-12
Abstract: A sleeve (5) is pushed onto a rotating workpiece (3) of a dental drill holder (1) for limiting the penetration depth of the workpiece (3). The sleeve (5) has an upper flange (6) with a bracket (9) formed by a tension spring which can be placed over the drilling head (2) of the drill holder (1) such that it holds the sleeve (5) on the rotating workpiece (3) against the housing of the drilling head (2). <IMAGE>
Patent DE-4132810-A1 (DE)
Title: Extrusion press pressure plate allowing complete venting of entrapped air - has convex curvature at front face of plate and passage(s) in (expansion) wear ring
Inventor: KOEDDERMANN HANS OTTO
IPC: B21C26/00
Filed: 1991-10-02
Abstract: Vented rigid pressure plate has a dia. smaller than that of an adaptor or the ram to which it is attached and can travel with play in the extrusion container. Wear ring, made of the same material as the pressure plate, is fitted between the pressure plate and the adaptor or the ram and has a thickened outer edge region which is flush with the front face of the pressure plate and which thickens in the outward direction at an obtuse angle. Venting is obtd. by provision of a convex curvature (2) at the front face of the pressure plate (1) and passage(s) (4) in the (expansion) wear ring (7). Passages (4) are pref. located in the wear ring (7) where the sides of the acute angle (13) of the thickened portion (9) intersect. Wear ring (7) pref. has an overlap region (5) which overlaps the adaptor (3) or the ram. ADVANTAGE - Design provides complete venting of air trapped between the billet, the container and the pressure plate.
Patent DE-4136022-A1 (DE)
Title: Stereo acoustic field expansion and asymmetry correction appts. - applies phase and level corrections to digitised channel signals for crosstalk adjustment with buffering and delay
Inventor: YAMATO TOSHITAKA
IPC: H04S1/00
Filed: 1991-10-31
Abstract: From e.g. a magnetic tape recorder, or radio receiver (11), left- and right-hand channel signals (12,13) are digitised (ADDL,ADDR) and processed arithmetically to produce crosstalk signals and crosstalk adjustment signals, reconverted to analog form (DADL,DADR) for power amplifiers (AMPL,AMPR) and loudspeakers (SL,SR) at different angles w.r.t. the listeners (3a,4a). The processor (14) incorporates acoustic field control units, filters, delay units, buffers and adders in both channels. The buffers perform level corrections after rephasing of the signal in each channel. USE/ADVANTAGE - For car recorders and radio receivers, with natural quality and lateral symmetry reproduction.
Patent DE-4136087-A1 (DE)
IPC: C12N15/09
Filed: 1991-10-31
Abstract: The invention relates to a novel thrombin-inhibiting protein from ticks with a molecular weight of some 26000 Dalton and which has the amino acid partial sequences Val-Ala-Lys-Phe-Ala-X-Asn-Ser-Gly-Ser-Glu-Thr-Gly, His-Ala-Y-Phe-Glu, Arg-Val-Ser-Asp-Phe-Glu and Phe-Val-Tyr-Thr-Ile-Glu, in which X and Y may be the same or different and stand for a naturally occurring amino acid. The protein is suitable for combatting diseases.
Patent DE-4138603-A1 (DE)
Title: Slip control for hydrodynamic torque converter bridging clutch - uses torque signal provided by torque sensor at output of vehicle automatic transmission to calculate required slip
Inventor: MARTIN HARRY
IPC: F16H61/14
Filed: 1991-11-23
Abstract: The slip control determines the slip for the clutch, providing mechanical bridging of the pump and turbine wheels of the hydrodynamic torque converter, in dependence on a torque signal obtained at the output of the vehicle automatic transmission. The torque signal is provided by a torque sensor and fed to a control unit evaluating the torque variations to calculate the clutch slip. Pref. the control unit determines the mean value of the torque signal within a given time window, used to evaluate the torque variations. ADVANTAGE - Prevents rumble noise in vehicle and longitudinal jerking of vehicle during gear changing.
Patent DE-4139225-A1 (DE)
Title: Pneumatic brake for rail vehicle - uses single control pipe and three way valve with common outlet
Inventor: SCHNEIDER MATTHIAS
IPC: B60T13/40
Filed: 1991-11-22
Abstract: The brake for a rail vehicle with a single control pipe has two control valves (3,5) with different control characteristics connected to the main air pipe (2) and joined via brake cylinder pressure pipes (9,10), a three way valve (12) and a common outlet pipe (13) with the brake cylinder (14). The control valves are each connected to air containers (7,8), and switching units (4,6) and the three way valves are connected to a shaft (15) having an end cover (16). ADVANTAGE - Rail vehicle braking system which can be made compatible with existing braking arrangement on goods trains.
Patent DE-4204419-A1 (DE)
Title: Actuator for vehicle hydraulic brake - uses connecting bolts for booster housing pulled tight against back of vehicle wall
Inventor: BUSCH MARTINA
IPC: B60T13/567
Filed: 1992-02-14
Abstract: The actuator for a vehicle hydraulic braking circuit consists of a master cylinder and a pneumatic booster.The fastening directed towards the bodywork wall (30), in the assembled state of the booster, so grips the wall from behind that the actuator is fixed to the wall by tightening the fastenings (25, 27, 28) directed towards the master cylinder (2). The connecting bolts (18) carry markings which indicate the position of the fastenings (26) directed towards the wall. ADVANTAGE - Actuation unit whose design makes it suitable for installation on the vehicle by an industrial robot.
Patent DE-4205920-A1 (DE)
Title: EMC resonant cavity test chamber with highly conductive wall lining - tunes to resonance by sliding of intermediate wall having spring contacts providing continuity with metallic coatings on floor and ceiling
Inventor: NEDTWIG JOACHIM DIPL ING
IPC: G01R29/10
Filed: 1992-02-26
Abstract: The chamber (1) has a floor (5) and ceiling (6), fixed end walls (4) and an intermediate chamber wall (2) which can slide in either direction (9 or 10) with continuity maintained by springs (3) in contact with the screening (7) on the interior surfaces. The equipment under test (8) is placed within a resonant cavity tuned by movement of the intermediate chamber wall. The Q of the chamber can be increased by a factor of 2.5 to 25 by coatings of tin, copper, gold or silver. ADVANTAGE - Test field strength is increased significantly (by 30 dB or more) to overcome problems of variability in amplifiers, antennas and cabling.
Patent DE-4206867-A1 (DE)
Title: IC engine valve control mechanism - employs tongue of wear resistant material insertable between cam surface and cup tappet.
Inventor: MUELLER LEOPOLD DIPL ING
IPC: F01L13/00
Filed: 1992-03-05
Abstract: Valve control arrangement for a reciprocating piston combustion engine having a cam shaft driven by a crankshaft, with at least two cams to open and close each valve. A tongue (4) made of wear resistant material is attachable by a fastener (8) to a drag lever (5) insertable between the cam (3) and the cup tappet (10), whereby the radius of the circumference of the base of the cam is reduced in relation to the radius of the circumference of the base of the outer cam (2) by the thickness of the tongue. USE/ADVANTAGE - Valve mechanism allowing an adjustment of valve opening and closing timing points in relation to engine performance.
Patent DE-4210716-A1 (DE)
Inventor: BERNDT KLAUS-GUENTHER DIPL ING
IPC: H01H33/02
Filed: 1992-03-27
Abstract: The multi-pole vacuum switch (1) described has, for each pole, an insulation assembly (23) made up of shell-like insulation elements (21, 22). Adjacent to a space designed to accommodate the switching tubes are chambers defined by walls (25, 26, 30, 32, 33), the chambers being intended to accommodate the mechanical and electrical components of a pole unit (2). These are, in particular, a flexible, loop-shaped strip conductor (17), a lever device (46, 50, 51), contact springs (43) and current converters (38). All of the tensioning bolts (4) which pass through the pole units (2) connect the pole units (2) with a pole block (3). The invention is suitable for use in vacuum power switches, in particular switches for low working voltages.
Patent DE-4211290-A1 (DE)
Title: Stock inlet flow mixer - has cross=section of one feed near the end of the other feed for a constant mixed vol flow
Inventor: BEGEMANN ULRICH
IPC: D21F1/08
Filed: 1992-04-03
Abstract: The appts. to mix together two fluids, in the feed to the stock inlet of a paper-making machine, has an area redn., in the feed (B) for the second part vol. flow near the end of the feed (A) for the first part vol. flow. The area redn. is formed with an elastic material, which can be set for adjustment. The feed (A) and/or (B) has a conical section line, and they can be moved axially in relation to each other. The flow resistance (WC) is formed by the stock inlet of the paper-making machine. Further flow resistances can be in the feeds (A) and/or (B). USE/ADVANTAGE - The assembly is for the mixing of two flows, for a constant mixed vol. flow to the stock inlet, where one part flow is controlled and the other is uncontrolled. The assembly is simple, and gives a constant mix. vol. flow independently of the flow of one vol. part.
Patent DE-4213835-A1 (DE)
Title: Shelving system with movable shelves between stationary side shelves - has one service vehicle for each shelf plane and all service vehicles movable by common support tower.
Inventor: TIELKER UWE DIPL ING
IPC: B65G1/04
Filed: 1992-04-28
Abstract: The tower (12) has  a number of superposed holders with guides corresponding to the number of superposed shelf compartments (6). The guides are set at corresponding levels in the guide rails (5).  Each service vehicle (7) can move directly from the tower at the right level into the corresponding guide rails of the relevant shelf base. A load transfer device (16) with vertically movable holders (17) for the goods (10)  is mounted at least one end of the guide path (11) for the tower set along the front of the shelf units (2,3). USE/ADVANTAGE- Much faster loading/unloading times.  Handling operations are not completely halted should one service vehicle become inoperative.
Patent DE-4216371-A1 (DE)
Title: Two=way pedal-operated controller for dental surgery
Inventor: HAIN JOSEF
IPC: A61C1/00
Filed: 1992-05-18
Abstract: The actuator of the foot-operated switch is rockable about a transverse axis in either direction from a neutral position to actuate one or other of two control elements (13, 14) set into a base plate (10).The rocking plate (16) is balanced on a fulcrum (24) supported by two leaf springs (22) which oppose the depression of either projection (18 or 19) into a corresp recess (20 or 21) contg the switch plunger. A stop (27) limits the rocking movement to 1 or 2 mm.
Patent DE-4217269-A1 (DE)
Title: Needle positioning appts. for stopping sewing machine - has controller using signal from flywheel markings to momentarily engage clutch to turn machine to required position in steps
Inventor: PAPAJEWSKI R
IPC: H02K7/10
Filed: 1992-05-25
Abstract: Machine has a continuously running motor and a drive clutch with an electronically controlled electromechanical, hydraulic or pneumatic actuator. The controller derives at least one signal from a sensor which indicates the angular position of the sewing machine, engages the clutch for a preset period and then disengages it. It repeats the cycle till a required needle position is reached. The actuator works against a spring and the coupling is connected to a brake when released. A sewing machine (1) is controlled with a foot pedal (5) which moves a clutch lever (4) against a spring (7) to engage a clutch (6). When the pedal (5) is released a brake (8) is applied and a sensor (4) activates an electronic controller (9) and an electromagnet (3). The flywheel (10) has spaced markings which reflect light to a sensor to provide a signal to the electronic controller (9) to momentarily engage the clutch. The cycle is repeated and the machine is brought to the desired position in a number of steps according to the position of the markings. USE/ADVANTAGE - The invention is a simple device using conventional drive components which ensures that the sewing machine stops with the needle fully in or out of the fabric as required.
Patent DE-4219613-A1 (DE)
Title: Longitudinal measuring unit with housing arranged on adjustable holder - guided along measurement surface at which measuring wheel is rotationally located rolling on measurement surface and with counter disc coupled to measuring wheel
IPC: G01B3/12
Filed: 1992-06-16
Abstract: The counter disc (5) is provided with a photo-electric scanner (6). The counter disc (5) is arranged directly on the spindle (7) of the measuring wheel (4). The counter disc is of glass or transparent plastics material with markings uniformly distributed over the outer edge region. The holder (2) consists of a carriage unit (8), adjustable essentially vertically to the measurement surface (3). The carriage upper part of the unit (8) carries the housing (1), and its lower part (10) is connected to a machine part (12) via an adjustable three point location (11). ADVANTAGE - Longitudinal measuring attachment simplified without reducing measurement accuracy.
Patent DE-4226490-A1 (DE)
Title: Folded box for holding plate-like stackable goods - is automatically erected from blank before being loaded with goods all carried out on conveyor line
Inventor: MEYER HANS-HENNING
IPC: B65B35/36
Filed: 1992-08-11
Abstract: The box has round the upper edge of the end walls (12) and on side walls (14) a rigid rectangular circumferential frame (16). The end walls (12) are swivel mounted on the base and can be folded inwards down onto the base. The long side walls are swivel mounted on the upper frame (16) and on an edge strip projecting up from the base. These long side walls can be folded halfway in between the swivel axes (28,30). Recesses (34,36) are set in the base (10). When erecting the box lift rams can be pushed from underneath up through the recesses so that they seize and lift the inwardly folded end walls which then press out and erect the inwardly folded long side walls. The lift rams continue to operate to load the box. USE/ADVANTAGE - Fully automatic system for erecting and loading the box. The box can be folded flat for reuse.
Patent DE-4236563-A1 (DE)
Inventor: STEININGER HELMUT DR
IPC: B42D25/29
Filed: 1992-10-29
Abstract: An anti-copying film or layer is composed of a film or layer of transparent material with a plurality of mutually spaced, at least partially non-transparent areas whose planes are arranged in approximately the same position with respect to the surface of the film or layer, so that from a predetermined viewing angle the surface of the anti-copying film is substantially transparent. These areas are at least partially made of a photosensitive material converted by exposure to radiation into a non-transparent or reflecting material. Grooves or flutes in which the photosensitive material is located may also be provided in the transparent plastic material.
Patent DE-4243319-A1 (DE)
Title: Rotary indexing electrical switch - has rotary contacts arranged around housing and operated by indexing cam that displaces plungers.
Inventor: GUZZON GIORGIO
IPC: H01H19/02
Filed: 1992-12-21
Abstract: An electrical rotary switch has a central assembly (38) that is indexed relative to a number of electrical switch contacts (46) located around the periphery of the housing. The central unit has two spring-biased followers that are forced radially against a camtrack that has specific positions. As the unit is indexed a profiled cam track surface displaces plungers (53,54) that operate against the carrier arms (48) of movable contacts. The arms are spring-biased (50) to the closed positions. USE/ADVANTAGE -Vehicle lighting systems.Reliable, long life operation.
Patent DE-4243660-A1 (DE)
Title: Evacuated solar storage collector
Inventor: WEIMER THOMAS
IPC: F24S10/40
Filed: 1992-12-23
Abstract: The solar collector has a stainless steel pipe section with unions at the ends for cold water inlet and hot water outlet. Surrounding this is a jacket made of transparent plastic and the space between them is evacuated. One end plate of the jacket can be removed. There is a sensor in the intervening space to ensure that the pump can create a vacuum of less than ten thousand Pascals.  Commercially available and exchangeable seals are used for the unions. The unions are not coaxial so that relative movement between jacket and steel pipe is prevented.
Patent DE-4300456-A1 (DE)
Title: Hydrostatic-mechanical gearbox with continuous torque converter
Inventor: MEYERLE MICHAEL
IPC: B60K5/12
Filed: 1993-01-11
Abstract: The hydrostatic-mechanical distribution gearbox has a continuous torque convertor (4) with three point location, such that one bearing (21) on the input and output side of the convertor acts as the central location point to fix the middle axis of the convertor to the gearbox housing (3). A third bearing acts as a moment support location (22) for the convertor. The central bearing is arranged such that a rotation of the convertor about its central axis, against the moment support bearing, is possible, and whereby this moment support bearing is equipped with or without an elastic spring support.